APPLICATION
THHN/THWN-2 cables are use in Class 1, Division 2 Hazardous locations such as those encountered in the oil, gas and petrochemical industry. They can be installed in trays, wire ways, ducts, conduit and aerially when properly supported by a messenger. They are approved for direct burial, for use in wet or dry locations, and outdoors in cable trays where a sunlight resistant rating is required.
Cable designation: THHN references the Nylon-coated conductor wire, THWN-2 the 90oC PVC insulation layer.
CONSTRUCTION
- Conductor: Bare Annealed Copper
- Insulation: PVC-FR / Nylon (Polyvinyl Chloride – Flame Retardant / Nylon)
- Screen: Aluminum Tape
- Drain Wire: Tinned Copper (16AWG 7 strand)
- Ripcord: Nylon
Outer Sheath: Special PVC (Polyvinyl Chloride) - Sheath Colour: Black
- Core Identification: Color coded as E2 per ICEA S-73-532
CHARACTERISTICS
- Voltage Rating: 600V
- Temperature Rating: +90°C
STANDARDS
ISO/IEC 17025
ICEA S-73-532, UL 1277, UL 83, ASTM B3/B8